Home / 31,036.20-42,827.76-16,888.74

Finding the Fourth Proportional to 31,036.20, 42,827.76 and 16,888.74

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Solution

The fourth proportional to 31,036.20, 42,827.76 and 16,888.74 is: 23,305.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,036.20 : 42,827.76 = 16,888.74 : x
  2. Step 2: Convert to fraction form
    31,036.20/42,827.76 = 16,888.74/x
  3. Step 3: Cross multiply
    31,036.20x = 42,827.76 × 16,888.74
  4. Step 4: Simplify right side
    31,036.20x = 723,306,903.42
  5. Step 5: Solve for x
    x = 723,306,903.42/31,036.20
  6. Step 6: Final answer
    x = 23,305.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.